Simple Javascript Math Function- addition/not working?

Question

This is my function:

var ans=(X*X)/(Y+Z);

When I enter 10, 20, and 10 - respectively- the addition bit comes out as 2010 and not 30. How can I fix this?

Because you're adding strings.

user1106925
– user1106925

2013-05-24 02:30:33 +00:00
Commented May 24, 2013 at 2:30 — user1106925
– user1106925, Commented May 24, 2013 at 2:30
where is your code which assigns X, Y and Z ?

Ravi Trivedi
– Ravi Trivedi

2013-05-24 02:31:49 +00:00
Commented May 24, 2013 at 2:31 — Ravi Trivedi
– Ravi Trivedi, Commented May 24, 2013 at 2:31

Dennis · Accepted Answer · 2013-05-24 02:31:47Z

4

Make sure to convert your strings to numbers first:

var X = "10";
var Y = "20";
var Z = "10";

X = +X; // unary plus operator converts to a number
Y = Number(Y); // or use the Number function
Z = parseInt(Z, 10); // or parseInt

var ans=(X*X)/(Y+Z);

answered May 24, 2013 at 2:31

Dennis

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